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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.13 No.5
- 발행연도
- 2019.7
- 수록면
- 571 - 589 (19page)
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초록· 키워드
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This paper presents and emphasizes the essence of inclusion of shear response and shear–flexural interaction in the investigation of reinforced concrete (RC) columns characterized by light and inadequately (substandard) detailed transverse reinforcement. This column type commonly exists in old-constructed RC frame buildings before the regulation of modern seismic codes. A stiffness-based RC frame element with shear–flexure interaction is formulated within the framework of Timoshenko beam kinematics assumption. Linked displacement interpolation functions are employed to remedy the problematic shear-locking phenomenon. The axial and flexural actions are interacted via the fiber-section model while shear-strength deterioration with inelastic flexural deformations is accounted for within the framework of the UCSD shear-strength model. The numerical procedure for shear–flexure interaction is modified from the Mergos–Kappos procedure. The proposed element is simple, computationally efficient and able to describe several salient features of RC columns with substandard detailed transverse reinforcement, including gradual spread inelasticity, shear–flexure coupling effects, and shear-strength deterioration with increasing curvature ductility. Three correlation studies are conducted to examine the model accuracy and its capability to predict the rather complex responses of non-ductile RC columns. Comparison with conventional flexural frame element is also presented to emphasize the essence of inclusion of shear response and shear–flexure interaction.
목차
Abstract
1. Introduction
2. Governing Equations of Timoshenko Frame Element
3. Stiffness-Based Formulation of Timoshenko Frame Element
4. UCSD Shear Strength Model
5. Sectional Shear Constitutive Model
6. Model Validation Against Experimental Evidence
7. Summary and Conclusions
References
참고문헌 (43)
참고문헌 신청
Aboutaha, R. S., Engelhardt, M. D., Jirsa, J. O., & Kreger, M. E. (1999). Rehabilitation of shear critical concrete columns by use of rectangular steel jackets. ACI Structural Journal, 96(1), 68?78.
Bett, B., Klinger, R., & Jirsa, J. O. (1985). Behavior of strengthened and repaired R/C columns under cyclic deformations. PMFSEL report no 85-3, University of Texas, Austin, USA.
Ceresa, P., Petrini, L., & Pinho, R. (2007). Flexure?shear fiber beam?column elements for modeling frame structures under seismic loading: State of the art. Journal of Earthquake Engineering, 11(supplement 1), 46?88.
Ceresa, P., Petrini, L., Pinho, R., & Sousa, R. (2009). A fibre flexure?shear model for seismic analysis of RC-framed structures. Earthquake Engineering and Structural Dynamics, 38(5), 565?586.
Filippou, F. C., D’Ambrisi, A., & Issa, A. (1992). Nonlinear static and dynamic analysis of reinforced concrete subassemblages. Earthquake Engineering Research Center Report No. UCB/EERC-92/08, University of California, Berkeley, USA.
Bett, B., Klinger, R., & Jirsa, J. O. (1985). Behavior of strengthened and repaired R/C columns under cyclic deformations. PMFSEL report no 85-3, University of Texas, Austin, USA.
Ceresa, P., Petrini, L., & Pinho, R. (2007). Flexure?shear fiber beam?column elements for modeling frame structures under seismic loading: State of the art. Journal of Earthquake Engineering, 11(supplement 1), 46?88.
Ceresa, P., Petrini, L., Pinho, R., & Sousa, R. (2009). A fibre flexure?shear model for seismic analysis of RC-framed structures. Earthquake Engineering and Structural Dynamics, 38(5), 565?586.
Filippou, F. C., D’Ambrisi, A., & Issa, A. (1992). Nonlinear static and dynamic analysis of reinforced concrete subassemblages. Earthquake Engineering Research Center Report No. UCB/EERC-92/08, University of California, Berkeley, USA.
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